Initial commit based on https://github.com/minio/minio/releases/tag/RELEASE.2020-07-02T00-15-09Z

cmd/posix-errors.go

@@ -0,0 +1,130 @@
+/*
+ * MinIO Cloud Storage, (C) 2016, 2017 MinIO, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cmd
+
+import (
+	"errors"
+	"os"
+	"runtime"
+	"syscall"
+)
+
+// Function not implemented error
+func isSysErrNoSys(err error) bool {
+	return errors.Is(err, syscall.ENOSYS)
+}
+
+// Not supported error
+func isSysErrOpNotSupported(err error) bool {
+	return errors.Is(err, syscall.EOPNOTSUPP)
+}
+
+// No space left on device error
+func isSysErrNoSpace(err error) bool {
+	return errors.Is(err, syscall.ENOSPC)
+}
+
+// Invalid argument, unsupported flags such as O_DIRECT
+func isSysErrInvalidArg(err error) bool {
+	return errors.Is(err, syscall.EINVAL)
+}
+
+// Input/output error
+func isSysErrIO(err error) bool {
+	return errors.Is(err, syscall.EIO)
+}
+
+// Check if the given error corresponds to EISDIR (is a directory).
+func isSysErrIsDir(err error) bool {
+	return errors.Is(err, syscall.EISDIR)
+}
+
+// Check if the given error corresponds to ENOTDIR (is not a directory).
+func isSysErrNotDir(err error) bool {
+	return errors.Is(err, syscall.ENOTDIR)
+}
+
+// Check if the given error corresponds to the ENAMETOOLONG (name too long).
+func isSysErrTooLong(err error) bool {
+	return errors.Is(err, syscall.ENAMETOOLONG)
+}
+
+// Check if the given error corresponds to the ELOOP (too many symlinks).
+func isSysErrTooManySymlinks(err error) bool {
+	return errors.Is(err, syscall.ELOOP)
+}
+
+// Check if the given error corresponds to ENOTEMPTY for unix
+// and ERROR_DIR_NOT_EMPTY for windows (directory not empty).
+func isSysErrNotEmpty(err error) bool {
+	if errors.Is(err, syscall.ENOTEMPTY) {
+		return true
+	}
+	var pathErr *os.PathError
+	if errors.As(err, &pathErr) {
+		if runtime.GOOS == globalWindowsOSName {
+			var errno syscall.Errno
+			if errors.As(pathErr.Err, &errno) {
+				// ERROR_DIR_NOT_EMPTY
+				return errno == 0x91
+			}
+		}
+	}
+	return false
+}
+
+// Check if the given error corresponds to the specific ERROR_PATH_NOT_FOUND for windows
+func isSysErrPathNotFound(err error) bool {
+	if runtime.GOOS != globalWindowsOSName {
+		return false
+	}
+	var pathErr *os.PathError
+	if errors.As(err, &pathErr) {
+		var errno syscall.Errno
+		if errors.As(pathErr.Err, &errno) {
+			// ERROR_PATH_NOT_FOUND
+			return errno == 0x03
+		}
+	}
+	return false
+}
+
+// Check if the given error corresponds to the specific ERROR_INVALID_HANDLE for windows
+func isSysErrHandleInvalid(err error) bool {
+	if runtime.GOOS != globalWindowsOSName {
+		return false
+	}
+	// Check if err contains ERROR_INVALID_HANDLE errno
+	var pathErr *os.PathError
+	if errors.As(err, &pathErr) {
+		var errno syscall.Errno
+		if errors.As(pathErr.Err, &errno) {
+			// ERROR_PATH_NOT_FOUND
+			return errno == 0x6
+		}
+	}
+	return false
+}
+
+func isSysErrCrossDevice(err error) bool {
+	return errors.Is(err, syscall.EXDEV)
+}
+
+// Check if given error corresponds to too many open files
+func isSysErrTooManyFiles(err error) bool {
+	return errors.Is(err, syscall.ENFILE) || errors.Is(err, syscall.EMFILE)
+}